Trihalide-based ionic liquids. Reagent-solvents for stereoselective iodination of alkenes and alkynes

Autor:	Michele Bottai, Cinzia Chiappe, Daniela Pieraccini, Olga Bortolini, Valeria Conte
Rok vydání:	2002
Předmět:	Electrospray ionization Inorganic chemistry Trihalide Halogenation Settore CHIM/06 - Chimica Organica Mass spectrometry Pollution Adduct Ion chemistry.chemical_compound chemistry Reagent Ionic liquid Polymer chemistry Environmental Chemistry
Zdroj:	Green Chemistry. 4:621-627
ISSN:	1463-9270 1463-9262
Popis:	A study of the preparation of trihalide-based room temperature ionic liquids (ILs) has been made and the structure of trihalide ions has been investigated by electrospray ionization mass spectroscopy and NMR. The best procedure consists of mixing equimolar amount of ICl to [hmim][Cl] and IBr to [bmim][Br] or alternatively Cl2 or Br2 to [emim][I]. Trihalide ILs thus generated have been tested as reagent-solvents, or as reagents carrying out the reactions in [bmim][PF6], in iodobromination as well as iodochlorination of alkenes and alkynes. Furthermore, the addition of ICl and IBr in [bmim][PF6] was investigated. Yields of vic-iodochloro or iodobromo adducts from very good to almost quantitative are observed for all the substrates examined.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7da9f620389415a3cd6276fbeb862a4f https://doi.org/10.1039/b209436n Zobrazit plný text záznamu